Heating apparatus



Sept. 1951 w. H. DE LANCEY 2,568,120

HEATING APPARATUS Filed March 5, 1948 3 Sheets-Sheet 1 Fan,

IarrenEDeLanae Sept. 18, 1951 w. H. DE LANCEY HEATING APPARATUS 3Sheet's-Shet 2 Filed March 5, 1948 p 1951 w. H. DE LANCEY 2,568,120

HEATING APPARATUS Filed March 5, 1948 5 Sheets-Sheet :3

55 f 4-6 WW I I L- A Mrreiz 7[ Dela rzce y y mam "dential houses-lllntS'z f A principalobject of this invention is to pro- PatentedSept. 18 195i ,U TE ,,STATEs ;PATENT ornca setts" This invention relateswon or gas fired boilers ofthetype particularly adapted for heatingresiand small industrial establish 'vi de a-boiler"which, although mostefficient in -eperauon, is,-at the same time, particularlydesig'ned'soas' to be capable of economical manufacture'by modernf production-linemethods. In other words; the present inventioncontemplates 'a-boiler,-"the' design of which-is suchthat the ivarious component boilerelementsmay each be simply and' spee'dily constructed by automaticmachines, and thereafter assembled together in a most simple-andefficacious manner; to thefe'nd are maintained at aminimumfigure'.

-Aifurther object-ofthe present inventio'n'is to provide a boilenuni-twhich is so-comp'act 'that it may be completely: -assembled with itscontrols, .andzbetransported as a 'factory-tested unit-to thebuildingyin which operated.- i

it. to be installed and U ;,Yet;another object oi-this invention is toprovide a boiler, unit; which, when :operated as a steam vaporboiler,y.is; particularly adapted'for supplying extremely dry orsuperheated steam to the house heating system. which attached :th to-With the above will hereinafter 1appe ar,;the invention comprises the:levices, combinations, and arrangements of parts hereinafter-,setjorthand illustrated in the accompanying drawings of a preferredembodiirintof the invention, from which the several featuresoflthesinvention and the advantages thereof may be readily understood bythose skilledin'the art. "ffFig. l represe'nt's an assembly view,..partly in side elevation, ,and partly in vertical section, of a boilerin;accordance with my invention. 7 V

Fig.2 represents a fragmentary top, plan view fof the present boilerunit.'. i

Fig. 3 represents a sectional stantially along the line 3 3 of Fig. 1".Y 1 'Fig. ,41represents a sectional view taken stantially along theline4 4. of Fig. 1. I 1 fFig; 5 'represents, on a reduced scale, a frontviewof the present boiler unit. 1 4 f FigfiS represents, on a reducedsdal'eja rear view'of the present boiler unit. I FigL-"l represents asectional view taken sub stantially along the line 'l of Fig. IfvFig,Brepresents a perspective view of theboiler flue elements asattached to" their vertically opview taken: subiiose'd-headerplates.

and other objects "in view, as

Warren .HIZ'DeQLancey, Springfield, Mass., as- Sig-nor to AtlanticDevelopment Company, 1110.,

I Springfield, Masshja corporation of Massachu- App lication1M arch 5,1948, Serial No. 13,209

z'olaiinss (01. 122-426) Fig. 9 represents an end elevation veiw of atypical boiler flue elementemployed in the present boiler unit.

Referring now to the drawings which illustrate a preferred embodiment ofthe invention, the present boiler unit is substantially cylindrical inshape, and comprises a cylindrical outside boiler wall or shell 12 whichis closed at its bottomportion by means of aso-calledwet base. This wetbase comprises a pair of, vertically spaced plates I3, and I4 which aremaintained in a properly spaced position by means of a plurality of staystuds l5, IS. The peripheral edge portions of the plates [3 and I4 areconnected together by means of a circular strip l6 which isappropriately Welded along its top and bottom edge portions to thevertically opposed plates. The lower edge portion of the boiler shell I2is, in turn, welded to the strip l6 thereby forming a watertight seal.The top portion of the boiler is closed over by means of a circular topplate I! which is suitably welded to the boilerwall l2. -If desired, theentire boiler unit may be incased in an insulated metal jacket, therebyto enhance the appearance of the boiler, and at the same time, to reducethe heat losses from the same.

Referring particularly to Figs. 1, 3 and 5, it is to be understood thatthe lower front portion of the boiler wall [2 is aperture-d, and has afirebox door l8 suitably secured over this apertured portion. This doorl8, as may be particularly noted in Fig. 3,is linedwith firebrick,orother suitable heatinsulating material IS. The door l8 and theinsulating material l9 are provided respectively with horizontallydisposed apertures 20 and 2| through which the usual burner nOZZle mayextend.

Referring, particualrly to Figs. 1 and 3, there is disposed inwardly ofthe apertures 20 and 2|, a combustion chamber defined by an arcuateupstanding shell or wall 22, the forward end portions of which arewelded adjacent the apertured portion of the boiler shell 'l2,'as at 23.The bottom portion of the combustion chamber shell is closed by means ofa lower disk 24 which is suitably welded about its peripheral portion tothe lower edge of the shell 22. The top portion of the combustionchamber shell is closed over by means of a disk 25 and an L-shapedarcuate strip 26. This disk 25 has its peripheral portion welded to thetop edge portion of the shell 22, while the strip 25 has its verticallydisposed por tion 26 welded to both the disk 25 and the forwardlyextending portions of the shell 22. The horizontally disposed portion ofthe strip 26 is welded to the front apertured portion of the 3 boilershell I2, as at 21. This combustion chamber, in conjunction with thefront wall portion of the boiler shell l2, efiectively seals off thecombustion area from the water and steam chamber portion of the boileras the various wall portions of the combustion chamber are welded, orotherwise suitably connected, to either the boiler shell I2 or thebottom closure plate thereof.

Mounted directly within the confines of the combustion chamber is anopen topped firebox which comprises a rear wall 28 and a pair of sidewalls 29 and 30 which are connected to the rear wall. The forwardportions of each of the side walls 29 and 30 are Welded enem to thefront apertured portion of the boilershell l2, as at 23, 23. Also, thelower edge portions of the firebox walls 28, 29 and 30 are suitablywelded to the bottom plate or disk 24 of the combustion chamber. Stillreferring to Figs. 1 and 3, it is to fmits airto enter the firebox andtherebyenhance combustion. Of course, this plate -3j-| will also*permita viewbf theinte'riorof the firebox and this, enables onetdasce'rtain whether proper combustion is taking place. I This plate 3|is pivotally inountedupo'n-a pin32 whiehis-carried 'by' bars 33,-in turns'ecured upon the fi'reboxdoor '18.

The combustion gases "will, of necessity, pass upwardly out of thefirebox, and successively through flue "sections generally designated bythenumerals 35, 35 and 31, so as finally to pass out through astadk-connection-or-tube 33 which "is "disposed within the back portionof the boiler shell l2.

More specifically-[the flue section comprises "a plurality of"individual vertically disposed flu e "elements, each of which is"designated by the numeral 39. Each end portion'bf theseflues extendsthroughan appropriately shaped aperture provi'ddi'na-resb'ective one-ofapair of'horizontally disposed and vertically spaced header plates 40and4l. "By welding on'e end portion 'of each'flue'lto its associated headerplate a'rig-id watertight structure is formed, which *is bestillustrated in Figs. Band 9. By-referring to these latter two'figures,"it is to 'be understood that each of the individual flue sections 39,'39- comprises a pair of "identical corrugated'steel stamp: ings=42 and43 which are placed together with their corrugations in phase; and thnwelde'dat -their-opposite side portions 44, 44 so-as "to f'orr'n an openended flue having a tortuous gas-eonducting passageway therein.Essentially, each fiue' section 39 is shaped as a flatte'nedtube, andsince these fiues provide tortuous gas con'ducting passageways, there isno need to f provide the various flue elements withauxiliary--'baflle-plates. By thus forming each flue elementin thismanner, the two halves 42'and43 thereof may be ineXpensively stampedfrom the same die and, furthermore,'since the opposite side portions, aswell as the top and bottommarginalportions of the open flue, are'allleft in-anuncorrugated condition, the flue halves maybe readily'weldedtogether and to the header -plates"by'automatic welding equipment. Inthis latter connection, it is to be understoodthat the top and bott'ommarginal edge portions of each flue element are' secured to theirrespective header plate by means of a bead of welding material which isdisposed about the flue element and at the juncture of the flue elementand the header plate, as at 45. As each of these flues is corrugatedsubstantially throughout its entire length, it is clear that they allpresent an extremely large surface area to the boiler water whichsurrounds them and, thus, they function a efficient heat transfer units.I

Referring particularly to Figs. 1, 4, 7 and 8, it is to be understoodthat the lower header plate 40 of the flue section 36 forms a cover forthe above noted lowermost flue section or gas-col ieetm'g hamber 35. Asmay be understood by "particular reference to Fig. 8, the header plate 40 is-provided with a pair of depending side Walls 46, 45, each 'of whichis adapted to be Welded to an apertured portion of the combustion cham=her cover or disk 25, as at 41, 41-. igs. 1 and 7 disclose that thelower gas collecting' chamber t5 is completed by a pair of side plates48, 48 each of which is welded to the opposite side por tions 6': theheader plate 40, and to the apex" tli'redportion'of the top or disk ofthe com-'- bustion chamber, at 49. From this, it-1s to beunderstood-that theflue section or lower gasoollecting'chai'nber isformed substantially as a rectangular open bottomed box, having sidewallas 16, 46 and 48, 48, and a top wall or cover in the form of theheader plate-40. This lower gas-collecting chamber -35Ifunctions togather and 'direct the heat and combustion-gases from thecombustionchamber to the various individual flues -39, 39, and it -is-to be understood that it is -almost completely surrounded by the boilerwater, so that it will function as a heat transfer unit.

Referring nowto-Figs.'1,-4,7 and-8, it is who understood that'the abovenoted top headerplate ;tbcomprises the bottom portion of a substantiallyrectangular *shaped fluesection or upper gas collecting chamber '31. maybe'noted'in "Fig. '8, therheader plate 4| has :projecting upwardly fromone side thereof, a forward wall 50, and from its opposite -sidet-porti'on, an inwardly inclined erear "wall portion 51. These walls 50and "'51 ofJ-Ithe" header 1 plate act respectivelyxas front and rearwall portions' of theigas- "collecting chamber 31. Thischamber'is'further defined by a pair of side plates 52, 52, each '6! which issuitably welded "at its bottom portion tothe'header plate 4I,-' and 'at'its fronta'nd rear portions to the header plate "walls-50 and 5!. Byreferring particularly' to Fig. 1, it is to be -under'stoo'd'that theupper-edge portions'of the chamber "walls a're all welded to" anapertured portion of the boiler'bover plate I'I, as'at53, therebytohlake' fora watertight chamber. By referring to Figs. 1 and 2 it w'illbe'seen'that this chambenfl is enclosed at its u per portion by a means ofa boiler cover 54 which is "forcibly held in position by means of'aibolt55, the lower thraded end portion 0f whichis' receiyedwithin a fitting56 suitably provided'upon 'the'iipper face or the header plate 4|."Betweenithe-cover 54 and the top-cover plate 11 ofithefboilrjthte maybeprovided' theus'ual type ofgask'et 51.

From the above, it is to be understood'that after 'the combustionigas'es pass upwardly through the various'flue elements39f39j they-willpass into" the substantially rectangular shaped upper gas-collectingchamber. 31, and thereafter out'thr'o'ug'h a horizontally disposedtubularstack element 38, the inner end portion of which passes throughan aperture 58? provided in the rear wall 5| of thechamb'r 31.'This'stack element- 38 13 i a chimney.

Still referring to Figs. f1 and 7, it is to be particularly understoodthat there is provided within the boiler cover plate I1, a riseraperture 59 which is disposed directly over the stack tube 38. Fig. 7particularly illustrates the fact that the stack tube 38 is oval inshape, and ithas its major transverse axis disposed substantially in ahorizontal plane. The spacing between the riser aperture 59 and thestack tube is small, and in a preferred form of the invention, thedistancebetween the periphery ofthe stack tube and the bottom portion ofthe riser opening is less than the diameter of the riser opening. Theriser aperture 59 functions as a steamvapor egress opening whenever thepresent boiler is adapted to be connected with a steam vaporheatingsystem. However, on the other hand, if the present boiler is tobe employed in conjunction with a hot water heating system, a hot waterriser opening 60 may be utilized. This opening 66 is provided in theforward portion of the boiler cover plate [1.

When the above described boiler unit is to be utilized in conjunctionwith a steam vapor heating system, it is to be understood that steamwill be generated in the upper portion of the boiler. This steam will,of course, escape out of the boiler through the riser opening 59, but asabove noted, the oval shaped stack 38 is positioned directly across theriser opening so that all of the escaping steam must wipe over and aboutthe stack tube. From this it will be understood that since all of thecombustion gases pass through the stack connection 38, the latterelement will be maintained at an extremely high temperature, with theresult that the steam wiping over this stack will be substantiallysuperheated, and thus an extremely efficient heating medium will besupplied to a house heating system.

In order to adapt the present boiler for heating water for domesticusage, it is provided with a removable coil unit. More specifically,this coil unit comprises a plate 6| which may be removably secured overa frame 62 which surrounds an apertured portion of the rear section ofthe boiler shell I2. The frame 62 is suitably welded to the boiler shellI2, and is provided with a plurality of outwardly projecting bolts 63,over which the plate 6| may be mounted in the usual manner. Nuts 64, 64secure the plate 6| forcibly against a gasket 65 which is positionedbetween the frame 62 and the plate 6 I. As may be best seen in Figs. 1and. 6, the plate 6| is provided with inlet and outlet couplings 66 and61 which are adapted to be suitably connected to the domestic hot watersystem of a house. At the inner side portion of the plate 6|, thesecouplings 66 and 61 are appropriately secured to the end portions of asingle continuous coil of pipe generally designated by the numeral 68.From this, it is to be understood that the coil 68 is mounted upon theplate 6| in a manner such that the entire coil system, including boththe coil and the plate 6|, may be removed from the boiler unit as anintegral unit. Figs. 1 and '1 particularly illustrate the fact that thecoil 68 is adapted to be inserted into the boiler between the inner pairof boiler flue elements 39, 39.

Fresh water may be supplied to the present the outside of the boilershell l2.

6 boiler and; through either of two apertures 39, 69, and the otheraperture may be employed as a drain connection. A steam or hot waterreturn opening 10 is also provided in the rear portion of the boilershell I! just beneath the hot water coil unit. Referring particularly toFigs. 1 and 5, it is to be understood that water may be fed to theboiler through one of the inlet apertureslill, 69, until it rises to alevel generally designated by thev line 1|, and thus, surrounds all ofthe. individual flue elements 39, 39, as well as the lowergas-collecting chamber 35 and the combustion chamber. From this, it isto be seen that the present. boiler unit presents an extremely largeheattransfer surface area to the boiler water, with the result that ahigh degree of boiler .efiiciency results.

As illustrated in Fig. 5, various conventional instruments forindicating or controlling the operation of the boiler may be mountedupon For example, there is disclosed in Fig. 5, the usual gauge glass12, try cocks 13, 13, pressure gauge 15, and various hot water limitcontrols 16 and 11.

From the above, it should also be understood that the present boilerunit is particularly designed so as to be manufactured by productionlinemethods. For example, each of the individual boiler flue elements 39, 39is adapted to have its component side elements 42 and 43 stamped out onautomatic machinery and thereafter the side portions thereof may bemachine welded. Furthermore, each of the completed flue elements 39, 39is in turn welded to its oppositely disposed header plates 4|]: and 4|,each of which, in turn, forms a portion of a respective one of the fluesections 35 and 31. Thus, the flue sections 35, 36 and ,31' may bequickly and readily assembled as an function as extremely eflicient heatconducting means.

I claim:

1. A heating apparatus of the steam-producing type comprising, a boilerincluding a vertically disposed shell, top and bottom closure plates, acombustion chamber and a combined water and steam chamber formedrespectively within the bottom and upper portions thereof, said topclosure plate having a vertically disposed steam riser opening therein,a box-like gas-collecting chamber disposed within the water and steamchamber and adjacent the top closure plate so as to be surroundedpartially by steam vapor, a substantially horizontally disposed stacktube connected with said gas-collecting chamber and extending therefromthrough said Water and steam chamber and out through the boiler shell,said stack tube passing directly beneath and across the steam riseropening and having its outer periphery spaced below the bottom of theriser opening a distance less than the width of the riser opening sothat substantially all of the escaping steam will wipe over and aboutsaid stack tube, and a plurality of individual hollow as-conducting flueelements connected with the bottom portion of said gas-collectingchamber and depending downwardly therefrom through said water and steamchamber for connection with said combustion chamber.

2. -A heating apparatus of the steam-producing type comprising, a boilerincluding a vertically disposed shell, top and bottomclosureplates, a

combustion chamber and a'combined water and steam chamber formedrespectively within the bottom and upper portions thereof, the topclosure plate having -a vertically disposed steam riser opening therein,a box-like gas-collecting chamber disposed within the Water and. steamchamber and adjacent the top closure plate so as to be surroundedpartially by *steam vapor, 'a substantially horizontally disposed ovalshaped stack tube having its major transverse axis disposedsubstantially in a horizontal plane, said stack tube being connectedwith said gas-collecting chamber and extending therefrom through saidwater and steam chamber and out through afboiit said stack tube, and aplurality of individual hollow"gas-conducting flue elements bonne'c'tedwith 'the bottom portion of said gascollecting "hamberand dependingdownwardly therefrom through said water and steam-chamber tor-connectionwith said'combustio'n chamber.

" WARREN H. DE LANCEY.

"REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS wNumber I Name Date 152,064 I Barton June 16, 1874l-(16,235 Warner Aug-3, 1875 1;805,- 165 Denney May 1-2, 1931 Mikeska.T. Dec. 4, 2,037,019 Hall Apr. 14,1936 2,210,530 7 Bernhard Aug. 6,19402,228,602 Kolb Jan. 14, 1941 FOREIGN PATENTS Number Country Date,,3,-889 Great Britain Oct. 3, 1878 596,038

France Oct. 14, 1925

